| Issue |
EPJ Web Conf.
Volume 250, 2021
DYMAT 2021 - 13th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
|
|
|---|---|---|
| Article Number | 03014 | |
| Number of page(s) | 9 | |
| Section | Microstructural Effects | |
| DOI | https://doi.org/10.1051/epjconf/202125003014 | |
| Published online | 09 September 2021 | |
https://doi.org/10.1051/epjconf/202125003014
Influence of strain rate on the mechanical response of nanostructured coppers elaborated by SPD and SPS
1
Nexter Munitions, Bourges, France
2
Rafael, Haifa, Israël
3
ICB – UMR 6303 CNRS / UBFC, Dijon, France
4
Sintermat, Montbard, France
5
DGA Tt, Bourges, France
* Corresponding author: h.couque@nexter-group.fr
Published online: 9 September 2021
The influence of strain rate on the mechanical response of two different nanostructured pure coppers was investigated under uniaxial compression. The first nanostructured copper was elaborated by powder metallurgy using the Spark Plasma Sintering (SPS) process. The second nanostructured copper was elaborated by Severe Plastic Deformation (SPD). Conventional characterizations were conducted with quasi-static compression and tensile tests, hardness tests and, with microstructure analysis. The effect of strain rate was evaluated under uniaxial compression at strain rates varying from 10-4 to 10+4 s-1. The high strain rate data were generated with a direct Hopkinson impact technique. The increase of strength with strain rates was analysed and discussed from the Scanning Electron Microscope observations and grain size distribution. The mechanical properties are consequently dependent on the metallurgical history of these samples prepared according to two different routes.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.